Cannot sample enough valid points. (more)

\[x \cdot \sqrt{y \cdot y - z \cdot z}\]
x \cdot \sqrt{y \cdot y - z \cdot z}
double f(double x, double y, double z) {
        double r26358024 = x;
        double r26358025 = y;
        double r26358026 = r26358025 * r26358025;
        double r26358027 = z;
        double r26358028 = r26358027 * r26358027;
        double r26358029 = r26358026 - r26358028;
        double r26358030 = sqrt(r26358029);
        double r26358031 = r26358024 * r26358030;
        return r26358031;
}